Visual C + + source code, which has made it clear that is the RAR compression format




File list:
Ch7Demo4
.......\Debug
.......\res
.......\...\Ch7Demo4.ico

.......\...\Ch7Demo4.rc2
.......\Ch7Demo4.aps
.......\Ch7Demo4.clw
.......\Ch7Demo4.cpp
.......\Ch7Demo4.dsp
.......\Ch7Demo4.dsw
.......\Ch7Demo4.h
.......\Ch7Demo4.ncb
.......\Ch7Demo4.opt
.......\Ch7Demo4.plg
.......\Ch7Demo4.rc
.......\Ch7Demo4Dlg.cpp
.......\Ch7Demo4Dlg.h
.......\ReadMe.txt
.......\Resource.h
.......\StdAfx.cpp
.......\StdAfx.h